19967487

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{487}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 27171840

約数和(自身を除く): 7204353

約数列:

[1, 3, 79, 173, 237, 487, 519, 1461, 13667, 38473, 41001, 84251, 115419, 252753, 6655829, 19967487]

約数ペア:

[(1, 19967487), (3, 6655829), (79, 252753), (173, 115419), (237, 84251), (487, 41001), (519, 38473), (1461, 13667)]